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GRE Question of the Day (April 18th) |
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GRE Question of the Day (April 18th)
Math
If n and k are integers and n^2 – kn is even, which of the following must be even?
A) n^2
B) k^2
C) 2n + k^2
D) n(k + 1)
E) k(k + n)
Correct Answer - D - (click and drag your mouse to see the answer)
Question Discussion & Explanation
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